This series of slides shows photographs and drawings of plants in nature that exhibit and demonstrate the Fibonacci series. Animations are also included to help the students see the spirals and the g...More: lessons, discussions, ratings, reviews,...

Paul Myers created this demonstration as he was designing a Fathom project for Discovering Geometry. It shows when a triangle can be formed from the pieces after two random cuts are made in a 2...More: lessons, discussions, ratings, reviews,...

Simulates dropping needles on a lined sheet of paper and determining the probability of the needles crossing one of the lines on the page. The result is that the probability is directly related to the...More: lessons, discussions, ratings, reviews,...

Students color numbers in Pascal's Triangle by rolling a number and then clicking on all entries that are multiples of the number rolled, thereby practicing multiplication tables investigating numb...More: lessons, discussions, ratings, reviews,...

This material is based upon work supported by the
National Science Foundation under Grant DUE-0226284.
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National Science Foundation.